| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 775.0 | USD | 20251016 |
| Wanhua Chem | China national standards | MT | 760.91 | USD | 20251016 |
| Shandong Energy | China national standards | MT | 789.09 | USD | 20251016 |
| CNPC | China national standards | MT | 803.18 | USD | 20251016 |
| Shandong Yeyang Chem | China national standards | MT | 775.0 | USD | 20251016 |
| CNPC | China national standards | MT | 803.18 | USD | 20251016 |
| Shandong Yeyang Chem | China national standards | MT | 775.0 | USD | 20251016 |
| Shandong Yeyang Chem | China national standards | MT | 775.0 | USD | 20251016 |
| Shandong Energy | China national standards | MT | 789.09 | USD | 20251016 |
| Wanhua Chem | China national standards | MT | 1021.59 | USD | 20251016 |